<style>
    *{font-family:微软雅黑;}
    body{font-size:12px;}
    .btn{font-size:14px;}
    .font-title *{font-size:14px;height:30px;line-height:30px;padding-left:14px;font-weight:bold;}
    .font-content *,.font-content .small-box *{font-size:12px;}
    .more_btn{padding:0;width:20px;height:20px;background:url(IMG/more_icon.png) no-repeat 0 0;background-size:100%;cursor:pointer;position:absolute;right:5px;top:5px;}
    .more_btn div.active{background:#fff;padding:0;display:block;width:66px;height:auto;position:absolute;right:20px;z-index:999;text-align:center;}
    .more_btn .none{display:none;}
    .more_btn div a{padding:0;width:100%;display:block;color:#303030;border:1px solid #ccc;}
    .card-footer{background:#fff;}
    .content-header h1,h3.card-title,.sidebar .nav-link p,ol.breadcrumb.float-sm-right{font-size:14px;}
    .table>thead>tr>th{font-size:14px;}
    .table-bordered td, .table-bordered th{border:none;border-top: 1px solid #dee2e6;text-align:center;line-height:35px !important;}
    span.select2-selection{padding-top:4px !important;}
    .nav-link.active{height:40px;line-height:24px;}
    li.nav-item.has-treeview{margin-bottom:5px;}
    .form-control{font-size:12px;}
</style>
<nav class="main-header navbar navbar-expand <?php echo cookie('header_class')?cookie('header_class'):'bg-white navbar-light border-bottom'; ?>">
    <ul class="navbar-nav ml-auto">
        <li class="nav-item" title="快捷操作">
            <a class="nav-link" data-widget="control-sidebar" data-slide="true" href="javascript:void(0)"><i
                    class="fa fa-th-large"></i></a>
        </li>
    </ul>
</nav>